I use Turbo tax, cd/downloaded version in the past years. I'm not so sure I like the online version and then they have a copy of my financial information on their systems. Yes, I know a lot of others have it, but one more is not better. Since I have investments, depreciation schedules, etc I figure it saves me many hours of hand calculations so it is well worth the investment.

I've never been a fan of online (or even e-filing). It just seems a bit too invasive to type all of my tax information into a form that's going to be stored, analyzed and sold to the highest bidder. I'll spend the $20 to get a software package that runs on my PC and doesn't communicate back to the mothership, and I'll normally print out and mail.

I use TurboTax CD, not online. I am also paranoid about leaving my info on their site, even though it is most likley safe.

I have used TaxCut which I believe is now known as H&R Block, but the year I had 2 kids in college, it didn't seem to look right or ask the right questions. I bougth Turbo Tax that year and it was much easier to use.